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Topic: 27 gallon gas tank install on 16 SC (Read 7945 times)

Just for the hell-of-it, I took a 3/8" drill bit and slipped-it into a 3/8" deep socket and ratchet. Taped-it together real tight with duct tape and............... Enough said? I'm so damned smart. What?......You don't believe me? Just ask Croaker, Mark, Threeweight or StreamFixer.................(Okay, you might not want to bother Fixer).

Just for the hell-of-it, I took a 3/8" drill bit and slipped-it into a 3/8" deep socket and ratchet. Taped-it together real tight with duct tape and............... Enough said? I'm so damned smart. What?......You don't believe me? Just ask Croaker, Mark, Threeweight or StreamFixer.................(Okay, you might not want to bother Fixer).

Yat Yat

Did the “tool” have enough strength taped together to be able to cut? Yat, I don’t have to ask anyone about your geniusness, between yourself and 3WT you could write an “all things boating” encyclopedia!

Just for the hell-of-it, I took a 3/8" drill bit and slipped-it into a 3/8" deep socket and ratchet. Taped-it together real tight with duct tape and............... Enough said? I'm so damned smart. What?......You don't believe me? Just ask Croaker, Mark, Threeweight or StreamFixer.................(Okay, you might not want to bother Fixer).

I have owned two Arima's and never had the need to remove the main plastic tank, I have pulled many metal tanks and they have all has filters and line that were removable, leaving the vent above the fuel level when removed.

I just hate to make mortifications that are not reversible when trouble shooting a problem.

I was able to hand drill out that vent hole to 3/8 ID. I used a sharp drill bit and a vice grip to turn it. Took a while, but it worked. I put some thick grease on the drill bit and it did a very good job at keeping all the plastic shavings on the bit and out of the tank. Won’t know till I fill up again.

Glad to see you managed to get that opened. I'd be willing to bet you'll see quite a difference in venting. If I get ambitious, I'll pull my vent hose and check the hole size. I don't seem to remember it being as small as 1/4". About the pickup screen: Stupid me.........I never paid any attention to that pickup tube when I had the tank out.

I tried filling gas today with the vent hole enlarged to 3/8, not much help. I can only pump gas at maybe 1/4 flow of the pump. Gas spills out the filler and the p-trap vent now. I know we pretty much covered almost everything in this 7 page thread but if you guys can think of anything else I could try I’m all ears. I know the USCG specs say 7/16 minimum vent hole diameter and I’m now at 3/8, or 6/16. I wonder if another 1/16 would really make a difference? Appreciate any other advice. I’m really not liking cleaning up all the gas that spills in my splash well. Hopefully gas will not eat my gel coat.

As John said the nozzle needs to have room areound it for airflow. Also I know you shortened your vent hose to make it more vertical, is it now installed without any low spots to inhibit air flow? My vent pipe hole is definitely no bigger than 3/8” so I don’t see any larger making a difference.

I’ve tried pulling back the boot on the pump nozzle and holding it up with air space and no help. The vent hose has no low spots. Maybe the thickness of the filler neck on the tank is catching the gas and restricting the flow? But then why would it come out the vent too? I had 10 gallons in the tank and added 5 more gallons so 15 gallons. The tank is far from full.